#23399F#23399F

#23399F is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.167 H 268.1°. Best body text is #FFFFFF at 9.73:1 contrast (WCAG AA passes).

Color values

HEX	#23399F
RGB	rgb(35, 57, 159)
HSL	hsl(229, 64%, 38%)
HSV	hsv(229, 78%, 62%)
CMYK	cmyk(78%, 64.2%, 0%, 37.6%)
CIE-LAB	lab(28.87, 29.44, -57.62)
CIE-LCH	lch(28.87, 64.70, 297.06°)
OKLab	oklab(39.82% -0.0054 -0.1666)
OKLCH	oklch(39.82% 0.167 268.1)
XYZ	xyz(8.4121, 5.7858, 33.4676)
Luminance	0.0579 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23399F #9F8923

analogous

#23779F #23399F #4B239F

triadic

#23399F #9F2339 #399F23

tetradic

#23399F #9F2377 #9F8923 #239F4B

square

#23399F #9F2377 #9F8923 #239F4B

split-complementary

#23399F #9F4B23 #779F23

monochromatic

#0D153B #18276D #23399F #2E4BD1 #6076DC

Accessibility & contrast

On white

9.73

#23399F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#23399F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23399F

9.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23399F	#FFFFFF	#000000	##FFFFFF
##23399F	1.00	9.73	2.16	9.73
#FFFFFF	9.73	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004AA2

Deuteranopia (green-blind)

#003E9D

Tritanopia (blue-blind)

#005466

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #23399f;
/* rgb */ color: rgb(35, 57, 159);
/* oklch */ color: oklch(39.8% 0.167 268.1);

Tailwind

colors: {
  custom: {
    50: '#736fbc',
    500: '#23399f',
    950: '#000000',
  },
}

SCSS

$custom: #23399f;
$custom-light: #736fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#23399f",
  "rgb": {
    "r": 35,
    "g": 57,
    "b": 159
  },
  "hsl": {
    "h": 229.355,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.39824,
    "c": 0.16674,
    "h": 268.1
  },
  "luminance": 0.05787
}

Semantic roles & 50–950 ramp

primary

#23399F

secondary

#C1AF5D

accent

#C941E7

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #23399F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →